yashsingh1/xdaforums huggingface dataset:
[Nexus S Android Development] rrohanjs:
black ice rom - http://rootzwiki.com/topic/25581-rom-blackice-crespo-kangorade-381-6-6/page__st__20

down to 44% in 14hrs

3hrs screen time

2hrs voice call

matrix 19.5 cfs deadline ondemand

hey mathkid, i wanted to know that technically would noop and smartassv2 give better battery than deadline/ondemand ?
[Nexus S Android Development] ziociccio:
the best version is 19.5

no laggy,no fc,no hard battery drain.

20 is unusable

20.5 is so so
[Nexus S Android Development] SA-07:
Yeah, for you. I'm sure many others have run 20 just fine :eek:
[Nexus S Android Development] ziociccio:
I only gave information on my experience of use. I did not say that this kernel sucks, but there are better versions and other worse.

regards
[Nexus S Android Development] croques:
For me, 20 sometimes gave hard battery drain with OS taking 71% of battery;

20.5 'died' on its charging cradle overnight. Woke to find the screen black and the phone unresponsive and in need of a battery pull.
[Nexus S Android Development] SA-07:
I'm putting out v21.0 as a patch up problems release
[Nexus S Android Development] rrohanjs:
mathkid ? can you please answer
[Nexus S Android Development] Icecoldmeat:
I must say that v20.5 is running fine with stock speeds and noop/smartassv2 for 2 days now
[Nexus S Android Development] :
I'm on v20 bfs right now, extra snap, 50 hz (power saving for amoleds)

Never was a bfs fan, until now!
[Nexus S Android Development] micha3lvd:
Had some troubles with version 20.5, had to pull battery because the screen didnt respond anymore. And also had lost of signal quite fast after flashing. (2nd day was fine tough..)
[Nexus S Android Development] Harbb:
Depends entirely on usage and setup. Check out the CPU Governors and Battery Drain thread made by bedalus in general. Every governor has it's pros and cons in different circumstances.

In general: Ondemand is good as keeping frequency at the lowest but often disregards all frequencies in between. Lionheart is great at using all of them equally. Conservative lets you adjust which frequencies you want to be scaled to a larger extent. Smartassv2 lets you choose ideal frequencies while screen is on or off and easily one of the most variable cpu governors available depending on how you set it. Also, Performance is all about the Hz :cool:.

More info here, definitely a good read. When in doubt for IO schedulers, generally go for deadline.
[Nexus S Android Development] raducux:
I know benchmarks don't mean so much but the fps on my phone lowered considerably after changing to 20.5 fps. I have 9023 version . I went back to 19.5... still the most stable for me as well for daily use . No lag whatsoever. Cfs is supposed to be better multitasking right ? I for one don't see much of a difference ...
[Nexus S Android Development] gabling23:
i noticed that with this kernel the BLX is set to 100%.. can this setting affect the battery life?
[Nexus S Android Development] Harbb:
No. However below ~96 it stops charging at a lower percentage (whatever you set it to). Values above ~96 are purely cosmetic and don't charge more, just display a higher number before going back to normal. You can change the number to what you like with NSTools or manually through sysfs.
[Nexus S Android Development] The1Shark:
Had this problem too and 2 reboots. I am waiting for v21..
[Nexus S Android Development] caliban2:
20.5 cfs is running stable for me, normal batt-drain and nothing funny. Even cm9-nightly 0613, where many reported problems, isn't acting up. Dunno, maybe I'm blessed. :D
[Nexus S Android Development] SA-07:
I'm afraid you are ;)
[Nexus S Android Development] SA-07:
If I may ask, can I get a i9023 user to test out v21? pm me your email id
[Nexus S Android Development] rickballs:
So far so good. Running 20.5 with slim rom. Always been a big fan of matrix
[Nexus S Android Development] mixtapes08:
Send it to me

Sent from my Nexus S®
[Nexus S Android Development] apatal:
willing to test it for you as well. pm you my email.

Sent from my Nexus S
[Nexus S Android Development] jayjay3333:
Why would I ever need to wipe SD card?
[Nexus S Android Development] The1Shark:
You don't ..
[Nexus S Android Development] Maxxd01:
I had several reboots until I wiped my /cache partition (something I almost never no).
[Nexus S Android Development] caliban2:
No idea, but he asked which data he could lose when doing just an update. And you only lose data if you wipe /data or /sdcard...
[Nexus S Android Development] :
For people getting freezes, can you try bfs version please?
[Nexus S Android Development] jayjay3333:
Thanks I was wondering if I was missing something..lol :)

I just clean installed but didn't wipe SD card and saw this so was wondering if this was somehow necessary, but didn't see how it could be.
[Nexus S Android Development] Icecoldmeat:
the bfs version of 20.5 works even better than the cfs version for me. good job mathkiddy

Sent from my Nexus S™
[Nexus S Android Development] RicardoOneri:
I feel that we are going to get an update tomorow: D
[Nexus S Android Development] apatal:
+1. mk just needs to iron out some kinks in the new version so stay tuned, you guys.

Sent from my Nexus S
[Nexus S Android Development] Vinsane:
Ah crap...so I should use 20.5 or the 21??
[Nexus S Android Development] SA-07:
Wait until I announce.
[Nexus S Android Development] Vinsane:
Will do. Looking forward to it!
[Nexus S Android Development] RicardoOneri:
Downloading v21.0 right now: D
[Nexus S Android Development] SA-07:
Ok, final Matr1x kernel update for the nexus s :)
[Nexus S Android Development] RicardoOneri:
Final? You going to leave us? :-(
[Nexus S Android Development] SA-07:
Galaxy S3 time ;)

I am not 100% sure yet, but I most likely will make the jump... once I get it and fully start with it, I will post a goodbye thread so that there won't be any false alarms :rolleyes:

In case I do make the switch, it has been a pleasure!

p.s. I may still update the kernel but not as frequently
[Nexus S Android Development] ejatds:
your awesome work here will be missed :o
[Nexus S Android Development] Imppy:
Does 50hz version actually save significant money?
[Nexus S Android Development] jayjay3333:
Wow! Please don't forget about us if you go to the S3 and thanks for the amazing Matr1x for crespo!

:D
[Nexus S Android Development] Paragon_X:
Sorry guys I know this has been discussed to death but I'm still a little fuzzy on this. I have the amoled version and 20.0 works great for me. I understand it's at 50hz whereas the new version is 56hz, if I go up a refresh rate should that in theory negatively affect my battery life? Lastly I see with the latest update 20.5 there is Fsync control, is that facebook sync? Or something completely different.
[Nexus S Android Development] apatal:
nope. that's different. something to do with I/O read/write speeds. search a few posts back for links on information about fsync.

Sent from my Nexus S
[Nexus S Android Development] Paragon_X:
Cheers. I recall reading that back a few posts, no concern for me.
[Nexus S Android Development] Harbb:
Correct, 50Hz should be more friendly for AMOLED displays. However 56Hz is the stock rate. You now have the option to choose between the latest few kernels whether you want 50 or 56Hz, i would try both and make a decision ;)
[Nexus S Android Development] al_madd:
Wow..MK will move to sg3...there is a lot great kernel dev there..including gokhanmoral..good luck MK..:):):):)
[Nexus S Android Development] SA-07:
I won't be getting the same phone... USA version is dual core
[Nexus S Android Development] sdhanjal15:
Bro. You'll be missed
[Nexus S Android Development] 309041291a:
Sticking to 20.5, 50 Hz is,awesome for me.

Nexus S (GSM - i9020a)

GummyNex (1.2.1 - 4.0.4)

Intellidemmand (800/100)

Live OC 105 (800/1000)

Deep Idle (On - Noop)

BLX - 96 (Custom DPI - 212)
[Nexus S Android Development] arief347:
it's weird, my phone is randomly flame own...

i flash matrix 20.5..

sorry for my bad english..

any issue about this
[Nexus S Android Development] SA-07:
Flash v21.0
[Nexus S Android Development] Vinsane:
V21.0 made my phone come back to life. Awesome work.

Everything so far has been fast and smooth
[Nexus S Android Development] SA-07:
Awesome
[Nexus S Android Development] apatal:
is this v21 good to flash now, mk? ;)

Sent from my Nexus S
[Nexus S Android Development] mixtapes08:
Absolutely :)

Sent from my Nexus S®
[Nexus S Android Development] :
If you're on AMOLED display

If you want an extra battery saving, go for v20.0. I'm recommending BFS now, as it seems to work well, and will save a few processor cycles. If you want a smoother display, v21.0 is 56 Hz again.

If you're on SLCD display

Go directly to v21.0!

In v21.0 you also have the ability to disable fsync (nothing to do with facebook!) which again may save power by reducing disk operations.

Also, you get PM_FAST when the screen is on. This means the wifi operates at full speed, just like when the screen is on! This will save power by reducing the time it takes to complete network operations, meaning everything can return to a nice power saving IDLE state sooner.

On a personal note, I'd like to thank mk for all his work!
[Nexus S Android Development] MobRookie:
Does anyone have some mirror to v21? can't get through to it on Matr1x web
[Nexus S Android Development] cdljl2005:
server down...

downloaded from mirror, which pitifully has no MD5 checksum info. :(
[Nexus S Android Development] jerrymouse12:
.... nothing, sorry ...
[Nexus S Android Development] apatal:
me too! thanks, mk! hope we haven't seen the last of you in this thread! good luck on moving on to a new device! :D

Sent from my Nexus S
[Nexus S Android Development] apatal:
http://www.mediafire.com/?fi6i0w5kh4zcong

Sent from my Nexus S
[Nexus S Android Development] toyface:
Thanks for this, looking to try out Matr1x after a friend's recommendation, should be fun :)

Thanks for the continuous hard work MathKid
[Nexus S Android Development] gioyann:
will be a sad day! Thanx Mat!
[Nexus S Android Development] cdljl2005:
v21.0 unable to boot! keeps rebooting before boot animation appear.

both CFS & BFS versions. wiped dalvik and cache before installing.

I9023, VDF.

==========

now I can't boot even flashed back to 20.0.... now restoring from the nandroid backup... sth wrong with my phone? :eek:

=============

after restoring I flashed v21.0 again... everything goes well.

I now deeply doubt my phone having some hardware issues, esp. storage part.
[Nexus S Android Development] Icecoldmeat:
Site doesnt work :s

Sent from my Nexus 66
[Nexus S Android Development] Blackcrx:
You sir... have been thanked.

Donation also sent. Please keep up the good work.

---------- Post added at 01:11 AM ---------- Previous post was at 01:07 AM ----------

Oh and for the badelus is right. If cfs causes crashes. Try bfs.

21cfs crashed twice in 3 hours. So far 21bfs has been good.
[Nexus S Android Development] Pi3rluigi:
Same here,it happens with 20.5 and now with 21

i9020t CM9_7
[Nexus S Android Development] MobRookie:
I wiped cache and dalvik cache and do not have a problem here...

Thank you very much for your work Mathkid!
[Nexus S Android Development] TigaTiger:
Hope the site is up again so i can download 20.5 and 21!

Edit: SITE IS UP AGAIN!

http://downloadandroidrom.com/file/matr1x/NexusSandNexusS4G
[Nexus S Android Development] micha3lvd:
Just flashed v21 cfs on i9023. No issues so far. will report later on stability, had no issues with bootloop.

Edit:

Screen freezed after using it for a while, had to do battery pull. trying BFS now. (had same problem with v20.5 CFS)
[Nexus S Android Development] apatal:
Trying out v21 bfs version now, and keeping my fingers crossed. ;)

Sent from my Nexus S
[Nexus S Android Development] atl4ntis:
I'm the only one who thinks 20.0 is the best, smoothest and stable on i9023?
[Nexus S Android Development] Icecoldmeat:
21.0 bfs runs fine

Sent from my Nexus 66
[Nexus S Android Development] atl4ntis:
Gonna try the bfs one then since 20.5 and 21 cfs gave some freeze on i9023
[Nexus S Android Development] Drizzy xS:
V 21 rebooting left right and center bfs
[Nexus S Android Development] SA-07:
Read the FAQ Spongebob
[Nexus S Android Development] SA-07:
Thank you for the donation!
[Nexus S Android Development] The1Shark:
I had one freez right after flashing 21 cfs, so far it was the only freez. V 20.5 didn't workout for me. A lot of freezes, had to do some battery pulls and had some reboots. I will try 21 bfs if my phone will keep freezes.

Thanks MK for all the kernels in the last couple of month. Good luck with your next phone.

The1shark
[Nexus S Android Development] Drizzy xS:
My phone isn't OCed though and it isn't the UV cause my phones always been able to handle the UV of matrix without a problem :S
[Nexus S Android Development] SA-07:
Try cfs or use an older version
[Nexus S Android Development] arief347:
My phone is randomly off..anyone facing this issue.. i used matrix cfs v21 ...
[Nexus S Android Development] ziociccio:
same for me.

v21 does not work perfecty...some freeze,two reboot!

bad!:mad:
[Nexus S Android Development] SA-07:
Wow what an awesome bug report!
[Nexus S Android Development] SA-07:
Nice try but provide more info next time
[Nexus S Android Development] ziociccio:
you must follow an education and respect course first.

after you can develop what do you want!
[Nexus S Android Development] atl4ntis:
/grabs popcorn
[Nexus S Android Development] lupoalberto12:
i9023, ICS 4.0.4 stock:

v19.5 cfs -> awesome

v20.5 cfs -> battery at 15%, the phone get stuck, I remove battery to reboot it, I turn on it, after completely reboot the phone shuts down suddenly, I tried to turn on again the phone but nothing so I connected it to the charger and it turns on: the battery was at 0% :eek: .

15% -> 0% in three minutes for only a reboot :confused: .

It's very strange.

v21.0 cfs -> I'm testing it.

Your last news is a very bad news :( .

Bye!

! :) !
[Nexus S Android Development] SA-07:
Yeah v20.5 was an unstable one

Well ty for testing
[Nexus S Android Development] cdljl2005:
I restored from nandroid and then flashed v21.0 again... booted successfully

confused.
[Nexus S Android Development] original21:
V21 cfs is working fine for me so far. Didnt have any problems. Seems very smooth.
[Nexus S Android Development] The1Shark:
Got another freez on v21 cfs, had to pull battery. Boot was stuck had to pull battery again and then a boot loop twice. I think I will try bfs version and if the freezes will not stop I will go back to V20 which was stable on my 9023.

I am using rooted stock rom, 210-1365 over clocking, deep idle is off, smartass gov and noop.

EDIT: got another freez. So i flashed bfs version. Testing it now.
[Nexus S Android Development] caliban2:
v21 cfs running fine on cm9 0614.

Have to add I did a full wipe last night because of freezes, but those started suddenly with 20.5.
[Nexus S Android Development] The1Shark:
Maybe a full wipe is the solution but not every one want to wipe the device when flashing a new kernel. Up until 20.5 had no problem at all and I only wiped delvic and cache partition.

I flashed v21 bfs 3 hours ago and up untill now had no freezes or reboot.
[Nexus S Android Development] al_madd:
Come on guys...provide some info for MK in your posting..

ROM

What mod are you using etc etc..

if freezing or SOD provide logcat for MK

How to submit Useful Bug Reports for Android
[Nexus S Android Development] xjerlzx:
Always using matrix cfs no issues but just updated to v21bfs on my 9023. At 100-800mhz noop/on demand its running faster ever! Not sure abt battery life but v20 had unstable battery life v19.5 was better.

Any reco for a better combi then noop and on demand?

I want battery life=]
[Nexus S Android Development] polobunny:
Conservative is good for battery life.

Read this, very interesting and some good settings in there too.

http://xdaforums.com/showpost.php?p=19846297&postcount=2
[Nexus S Android Development] SA-07:
Alright folks after some more testing it seems that SLUB was the major problem here... if the rest of the testing goes ok then I'm switching back to SLQB and releasing a v21.5 and I will announce when it is up on the site... I think this should fix all the problems.

So it seems v21.5 will be my last version before leaving :)
[Nexus S Android Development] :
...wait... freeze
[Nexus S Android Development] SA-07:
False alarm! :eek:
[Nexus S Android Development] polobunny:
Before leaving?
[Nexus S Android Development] SA-07:
GS3 haha
[Nexus S Android Development] :
It's proving difficult to isolate the issue.
[Nexus S Android Development] polobunny:
Everyone's leaving the Nexus S :(

Looks like a good phone though, understandable.
[Nexus S Android Development] atl4ntis:
For the records and the sake of the testing i'm experiencing freeze on i9023 no oc smartassv2 noop, both cfs and bfs. Never had one before included 20.0.
[Nexus S Android Development] Maxxd01:
Unfortunately I still have reboots with v21 cfw on 9023. It specifically occurs when I run some random app. Using slimICS.
[Nexus S Android Development] xjerlzx:
6hrs on v21bfs

No issues looking at the battery life now
[Nexus S Android Development] DaX05:
No issues here. Been on 21.0 for 4 hours.

Beamed from my Nexus S using Tapatalk 2
[Nexus S Android Development] SA-07:
Actually I'm in the 21.5 mood today :cool:
[Nexus S Android Development] CrackerTeg:
The only reboots I've had were on phone calls longer than 20 minutes. Didn't start happening until 19.0 I think. I didn't believe it to be the kernel and flashed multiple roms thinking them to be the culprit. The only thing that didn't change was I kept using this kernel. It just dawned on me today. I wish I knew what the issue could be and I wish I remembered which kernel version it started with. Always cfs btw.
[Nexus S Android Development] TechKidTarek:
cant wait to flash 21.0 on my nexus s after it comes back from repair its 3g is messed up
[Nexus S Android Development] xjerlzx:
1.5 hrs screen on of usage with wifi/3g batter life at 67 % looks good
[Nexus S Android Development] antrobi3:
Everything's fine here,i'm on the latest CM9 nightly and Matr1x 21.0 cfs,battery life is similar as in previous versions.
[Nexus S Android Development] SA-07:
For people having issues with v21.0 only: pm me email id
[Nexus S Android Development] TigaTiger:
Yeah from some reviews i've read. It is the BEST phone on the market right now but it if you prefer upgrading your OS it is better to have a galaxy phone. The ONLY problem is, its not in the nexus line of phones( Dev phones ). Androiv 5.0 jelly bean is coming this fall so the nexus line : HTC nexus one, Nexus S and Galaxy nexus is google's reference phone and will be the first to test and run it (jelly bean 5.0) :)))
[Nexus S Android Development] The1Shark:
Version 21 cfs didn't work for me and made my 9023 freez and reboot. I flahed v21 bfs and every thing seems just fine. Aprox 20h and no issues at all.

Rooted stock, 210-1365, smartass2 + noop, deep idle is off.
[Nexus S Android Development] :
We're working on cfs still... Well, mk is doing all the work...I'm just trying to kill it
[Nexus S Android Development] apatal:
good teamwork! :D

Sent from my Nexus S
[Nexus S Android Development] Vinsane:
Sending pm. Had to revert back to v20
[Nexus S Android Development] Pi3rluigi:
Do you mean the device id?

Inviato dal mio Nexus S con Tapatalk 2
[Nexus S Android Development] xdoit:
My phone i9023 with kernerl cfs V21.0 have one feeezing when using MX player and have to take out the battery to restart it. I have 4 times same issues using cfs V20.5. but every things is okay using cfs V20.0!
[Nexus S Android Development] mixtapes08:
Email add. anything. Lol

Sent from my Nexus S®
[Nexus S Android Development] apatal:
also had trouble with v21 both cfs and bfs. if you need a tester, mk, you know how to contact me. ;)

Sent from my Nexus S
[Nexus S Android Development] lupoalberto12:
:confused:

i9023, ICS stock, v21.0 CFS, 200/1000 ondemand, deadline.

When I open an app (any apps), the launcher is closed.

Bye!

! :) !
[Nexus S Android Development] xjerlzx:
Awesome battery life is similar 5hrs screen on before battery died
[Nexus S Android Development] TigaTiger:
i9023 SLCD user. 21 hours 66% v21 cfs. Wifi 25%, cell standby = 21%, Android OS = 11%, phone idle = 9%, Screen 9%, facebook 9%, Wifi on, Mobile network signal = strong. Perfectly working for me. Note: Battery started at 90%
[Nexus S Android Development] Maxxd01:
Same for me... didn't tried the bfs version but I can only assume that is not good for multitasking..
[Nexus S Android Development] :
Ah, I dunno... I tested BFS vs CFS waaaay back... and found a 1-2% increase in CPU scores. It's a nice little boost. However, back then, it caused problems with the user interface and some of the graphics benchmarks wouldn't run.

Several months down the line, and BFS seems to be behaving itself. I recommend giving it a whirl. What have you got to lose? :)

As for multitasking... again, I'm not sure. But I think that most apps simply stop executing when you switch to another one...? So there isn't true multitasking. I do know some apps keep executing when you switch, but they are special cases, like a stop watch (very low resource anyway) and specialist benchmarking apps, for instance, stability test.

I'd be interested to see if music playback suffers with BFS while you do something else like google earth. I'd welcome feedback from others if this is your forte.
[Nexus S Android Development] Maxxd01:
"most apps simply stop executing when you switch to another one". Looks like I have an iPhone again :P

For now I'm switching to another kernel because I really need a stable multitasking phone.
[Nexus S Android Development] Maxxd01:
For people (I believe, just 9023 users) getting freezes and/or reboots, please provide to the developer a logcat.

The application can be downloaded from here. Just make it logging/running in background, and when it happens, send the text file to mathkid95.

I honestly can't do it because my phone is used for business calls, but I really appreciate if anyone can do it.
[Nexus S Android Development] lupoalberto12:
I'll make it.

Three freeze, a little battery drain, some launcher (stock) crash...

Bye!

! :) !
[Nexus S Android Development] cowst:
@mk: I know right now you have bigger concerns for your farewell release, but since I don't know if they were fixed, I just want to remind 2 issues from v20:

1) default smartass values were wrong

2) you released 50 hz for slcd and 56 for amoled. Please swap them :)
[Nexus S Android Development] benrees21:
Sad to hear your leaving, good luck with the S3. Make sure you come back to another Nexus device in the future!

Sent from my Galaxy Nexus running Rascream ROM and the one and only Trinity kernel.
[Nexus S Android Development] 309041291a:
Scored over 5 hours on-screen use, in over 25 hours with 20.5.....

Nexus S (GSM - i9020a)

GummyNex (1.2.1 - 4.0.4)

Intellidemmand (800/100)

Live OC 105 (800/1000)

Deep Idle (On - Noop)

BLX - 96 (Custom DPI - 212)
[Nexus S Android Development] Icecoldmeat:
If you r going to the GS3 we only got like 3 kernels left... trinity , air kernel , thalamus ... , but i must say v21.0 runs superb.

Sent from my Nexus 66
[Nexus S Android Development] SA-07:
Ok taking some more testers pm me email id
[Nexus S Android Development] lupoalberto12:
I send my email address by PM.

Tonight, again 15% -> 0%, like with v20.5.

I can't save the log of Logcat: tomorrow I'll try again.

Bye!

! :) !
[Nexus S Android Development] system60:
Having possible issues with both 20 and 21, phone often reboots then freezes at the boot animation. Happens most often when charging in the car. Flashed back to stock to see if it stops.

Other than that it has been great
[Nexus S Android Development] SA-07:
Here is where the complaints have to end. I understand that 20.5 and 21 are not stable but I am working on it and I am bored of seeing the same old useless posts lol.

—————————————————
[Nexus S Android Development] CrackerTeg:
I can totally understand that. Any thoughts on what I said about during a long phone call? Could it be the allocator you were talking about?